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Cleaning copper block -exterior, suggestions?

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#1
I have a few copper blocks lying around that have lost their original shine, as well as collected some dust(and oil/sweat I imagine from handling) on the exterior, that's leaving dark/dirt marks when I give them a wipe.

I have a feeling they need to be soaked in something, though I'm not sure at what kind of acid ratio the solution would be. I have to also consider that one side of the blocks have something similar to the Danger Den 'speck' finish, and am not sure if that will complicate things.

Lastly, I wonder if I need to stop gap or block the inlet/outlets, as to not let the solution/liquid get inside?
 

sneekypeet

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#2
if you are speaking of completely external cleaning...I use neverdull, wheel polish. Does a great job with minimal effort. then you just need to clean the mating surface with alcohol after.

http://www.nevrdull.com/
 

erocker

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#3


I use this stuff on a lapped heatsink to give it a mirror finish.
 
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#4
ok erocker user this , you should take him advice cuz he is the moderator , no talk , and sneekypeet piont to same thing
 
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#6
Just to mess with your logic, I say:
haha , that's funny , i think he is going to washing dishs now , ohh dan i see you skills improve you have other experience behind computer's :D
 

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#7
Ketchup FTW...

I shined my EK 3870x2 full cover blocks with it tonight and they look sweet...
 

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#8
Ketchup FTW...

I shined my EK 3870x2 full cover blocks with it tonight and they look sweet...
agreed also, the vinegar content is enough to clean it too!
 
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#9
Cheap, non toxic (well relatively speaking) and cleans copper very very well:



:toast:
 
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#10

Flyordie

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#11
Cheap, non toxic (well relatively speaking) and cleans copper very very well:



:toast:
Literally, Coca-Cola uses it to clean their trucks engines... ;-p
 
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#12
Slice o' lemon. Or orange.
Anything with citric acid in it.
I use pure crystallized citric acid (solved in water).
 
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#13
Thanks.

I had figures on maybe lemon, vinegar or even ketchup... didn't think about coca-cola.

If I'm not going to be submerging the block(s), do I what? Rub something into the copper than leave it for...how long?
 
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#14
I would suggest perhaps using a 2 part process:

1. Submerge blocks in coke/vinegar/lemon juice for a few hours. This will remove the tarnish and grime. Rinse well under very hot water and then dry using hair dryer etc.

2. Then use a metal polish on the exposed/easy to reach places to remove any scratches or stubborn stains.

If you can wear a pair of rubber gloves for the second stage as the sweat/oils on your hands will cause the block to tarnish again.
 

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#15
Thanks.

I had figures on maybe lemon, vinegar or even ketchup... didn't think about coca-cola.

If I'm not going to be submerging the block(s), do I what? Rub something into the copper than leave it for...how long?
if you dont plan to clean the inside, just rub some neverdull/brasso on it . rub untill the discoloration is gone...wipe residue off with a cloth. No need for the acids and a rewash!
 
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#16
Fortunatley Brasso was enough, but thanks for the other suggestions, as well as submersion ideas.